Search results
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Fish by-catch in the krill fishery: 2018 update
) and CCAMLR SISO data (17 455 hauls) up to 20 Sept 2018 was used to examine the frequency of occurrence ... SISO data (17 455 hauls) up to 20 Sept 2018 was used to examine the frequency of occurrence, length ... in the commercial krill fishery catch data. As in previous years there was a high degree of overlap in the most ... : 2018 update Microsoft Word File: fsa-18-10.docx Approval: Approved Secretariat Workflow Status ...
Meeting Document : WG-FSA-18/10 : Author(s): CCAMLR Secretariat
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Spatial distribution and swarm characteristics of Antarctic krill around the South Shetland Islands
higher than the other two years. Meanwhile, much more swarms (1055) were detected in February 2018 than ... the other two years. Meanwhile, much more swarms (1055) were detected in February 2018 than the other three ... 2013, March 2015, January 2016 and February 2018 around South Shetland Islands. The swarm ... as swarms in a patchy fashion and the mean krill densities in December 2013 and February 2018 were markedly ...
Meeting Document : WG-EMM-18/42 : Author(s): X. Yu, X. Wang and X. Zhao
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First increment validation of Patagonian toothfish (Dissostichus eleginoides) from Heard Island
routinely ageing D. eleginoides, resulting in differences of ageing data presented. One area ... Patagonian toothfish, (Dissostichus eleginoides) have traditionally been aged assuming one opaque ... D. eleginoides, resulting in differences of ageing data presented. One area that was assumed to cause ... one opaque and one translucent increment is formed each year on the sectioned face of sagittal ...
Meeting Document : WG-FSA-05/61 : Author(s): K. Krusic-Golub, C. Green and R. Williams (Australia)
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Winter distribution of chinstrap penguins from two breeding sites in the South Shetland Islands of Antarctica
of eight chinstrap penguins known to breed at one of two colonies in the South Shetland Islands, Antarctic ... penguins known to breed at one of two colonies in the South Shetland Islands, Antarctic Peninsula region ... 28’ S, 600 46’ W). Chinstrap penguins were tracked successfully for one to six months following ... chinstrap penguins from Admiralty Bay, one from each winter, proceeded directly to the Elephant Island area ...
Meeting Document : WG-EMM-06/17 : Author(s): W.Z. Trivelpiece, S. Buckelew, C. Reiss and S.G. Trivelpiece (USA)
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Developing a Ross Sea region medium-term data collection plan
paragraph 4.160 vi). The long-term goals of the Ross Sea fishery based on Article II of CAMLR can ... or minimisation of the risk of changes in the marine ecosystem which are not potentially reversible over two ... objectives for the Ross Sea fishery for the next 5–7 years were developed in 2008. The outlined medium-term ... ). The long-term goals of the Ross Sea fishery based on Article II of CAMLR can be summarised as: the target ...
Meeting Document : WG-FSA-10/32 : Author(s): S. Mormede and S. Hanchet (New Zealand)
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Temporal changes in sighting density indices of baleen whales in CCAMLR Subareas 48.1 and 48.2 based on three circumpolar sighting surveys
data in Subarea 48.1 corresponded to years 1982/83, 1989/90 and 1993/94+1999/00, respectively while ... in Subarea 48.1 corresponded to years 1982/83, 1989/90 and 1993/94+1999/00, respectively while ... that in Subarea 48.2 those corresponded to years 1981/82, 1986/87 and 1997/98, respectively. The density indices ... with abundance estimates trend in humpback and Antarctic minke whales. Two issues are of importance ...
Meeting Document : WG-EMM-16/26 : Author(s): L.A. Pastene and T. Hakamada
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region to 2016/17
Abstract: We provide an update of the Bayesian sex and age structured population stock assessment ... catch, catch-at-age, and tag-recapture data from 1998 to 2017 and including the results from the Ross ... We provide an update of the Bayesian sex and age structured population stock assessment ... ;B), using catch, catch-at-age, and tag-recapture data from 1998 to 2017 and including the results from ...
Meeting Document : WG-FSA-17/37 Rev. 1 : Author(s): S. Mormede
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Seabird avoidance measures for small Alaskan longline vessels
m (> 26 to 55 feet) using two gear types: snap-on gear and fixed gear. We also determined ... access window produced by vessels deploying fixed gear at faster speeds averaged 90 m. Gear sink rates ... 16.8 m and with infrastructure (a 45-m streamer line with a minimum aerial distance of 20 ... to surface foraging Alaska seabirds, for 8 fishing vessels > 7.9 m to 16.8 m (> 26 to 55 feet) using two gear ...
Meeting Document : WG-FSA-05/36 : Author(s): E.F. Melvin and M. Wainstein (USA)
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A descriptive analysis of the toothfish (Dissostichus spp.) tagging programme in the Ross Sea up to 2005/06
. Tagging rates by area over the past three years have been in the same proportion as the catch by area ... 20% of the recaptures could not be matched to a release observation, mainly because of missing ... . However, the majority (>80%) Antarctic toothfish have moved less than 50 km. In 2006, New Zealand ... rates by area over the past three years have been in the same proportion as the catch by area. However ...
Meeting Document : WG-FSA-SAM-06/09 : Author(s): A. Dunn and S.M. Hanchet (New Zealand)
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Preliminary results of the experiments on the krill transport study in the South Orkney area (April 1992)
within the square of 30 x 30 miles northwestwards of Coronation Island in the fishing fleet operation ... on these values. In the.first two dublicates the aggregation of krill was observed within the contour ... and in the second two- loss of krill. The aggregation was 52 thous. t greater than the loss. The researches show ... that the fishing aggregation stability depends essentially on the heterogeneity of the current's field ...
Meeting Document : WG-CEMP-92/34 : Author(s): L.G. Maklygin, V.N. Shnar, A.P. Malyshko (Russian Federation) and A.G. Shepelev (Ukraine)